钋-铍中子源棒 polonium-beryllium neutron source rod

钋铍〔中子〕源 polonium-beryllium source

镭铍中子源 Ra-Be neutron source ; radium-beryllium neutron source

锑铍中子源 antimony-beryllium neutron source

镅-铍中子源 americium-beryllium neutron source

钚-铍中子源 plutonium-beryllium neutron source

锑-铍中子源 antimony-beryllium neutron source